Description

Trisodium 5-[[4-[[8-Amino-7-[(4-Aminophenyl)Azo]-1-Hydroxy-3,6-Disulphonato-2-Naphthyl]Azo]Phenyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its precise molecular structure, which serves as a critical building block in the synthesis of specialized dyes and pigments. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries who require consistent quality and reliable supply for their production processes.

Application

• Primary Intermediate for Azo Dyes: A key precursor in the manufacturing of acid dyes and direct dyes, particularly for coloring polyamide fibers like nylon and wool.
• Textile Industry: Used in the synthesis of dyes that provide bright, wash-fast colors on natural and synthetic fabrics.
• Ink Formulation: Serves as a colorant intermediate in the production of inks for packaging, printing, and writing instruments.
• Leather Dyeing: Employed in the creation of dyes for achieving vibrant and durable colors on leather goods.
• Paper Coloring: Used in the manufacture of dyes for specialty paper products requiring specific color properties.
• Research & Development: A valuable chemical for R&D laboratories focusing on novel dye chemistry, photochromic materials, or chemical sensors.
• Analytical Reagent: Can be utilized as a complexometric indicator or a standard in certain analytical chemistry methods.

Basic Information

Item	Detail
Product Name	Trisodium 5-[[4-[[8-Amino-7-[(4-Aminophenyl)Azo]-1-Hydroxy-3,6-Disulphonato-2-Naphthyl]Azo]Phenyl]Azo]Salicylate
CAS No.	67990-23-2
Molecular Formula	C29H18N6Na3O11S2
Molecular Weight	776.57 g/mol
Synonyms	5-[[4-[[8-Amino-7-[(4-aminophenyl)azo]-1-hydroxy-3,6-disulfo-2-naphthyl]azo]phenyl]azo]salicylic acid trisodium salt; Acid Black 210; C.I. 28440; Trisodium 8-amino-7-[(4-aminophenyl)azo]-1-hydroxy-2-[[4-[(2-hydroxy-3-carboxyphenyl)azo]phenyl]azo]-3,6-naphthalenedisulfonate; Azo Dye Intermediate 67990-23-2; Black 210 (Acid); Salicylic acid, 5-[[4-[[8-amino-7-[(4-aminophenyl)azo]-1-hydroxy-3,6-disulfo-2-naphthyl]azo]phenyl]azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our Trisodium 5-[[4-[[8-Amino-7-[(4-Aminophenyl)Azo]-1-Hydroxy-3,6-Disulphonato-2-Naphthyl]Azo]Phenyl]Azo]Salicylate is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive synthesis applications. A Certificate of Analysis (COA) detailing purity, impurity profile, and physical properties is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Solubility (in Water)	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.